The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2003
Filed:
Oct. 22, 1998
Masayuki Koyama, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
FIFO type memory is provided on a small circuit scale. Reading of data Dout<3:0> from a two-port type RAM (101) is executed with respect to the address specified by a read address ( ) in synchronization with the fall of a clock (CLK) provided to a clock end (CLR). Writing of data Din<3:0> on the RAM ( ) is executed with respect to the address specified by a write address ( ) in synchronization with the rise of a clock (CLK) provided to a clock end (CLW). In an address delayer ( ) after a read address ( ) taking an address value is outputted, a write address ( ) taking the same address value is always outputted with a fixed delay, so that a memory ( ) performs the FIFO type data input/output as a whole.